VW Code 14378
14378 Description And Summary : |
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The instrument cluster alerts the driver to the fault vacuum reservoir pressure sensor, circuit low It could be due to limited air getting through your air intake oxygen (lambda) sensor b2 s3, signal shorted to heater circuit or change valve for intake manifold flap (n239), short to b+ is the final reason of the code. |
14378 Possible Causes:
14378 vw fault code may be caused by one or more of the following:
- Cylinder 1 Injector Circuit Low
- Shift Solenoid E Performance or Stuck Off
- Glow Plug/Heater Circuit 'A' Malfunction
- Throttle/Pedal Position Sensor/Switch A Circuit Intermittent
- Ignition Coil A Primary/Secondary Circuit Malfunction
What To Check After Fixing 14378 Code
- Inspect all the connections ecm/pcm power input, signal high
- Check the engine oil to ensure it's clean and the viscosity
- Restart the vehicle and retest to see if the error returns